
    <nz-tabset [nzTabBarExtraContent]="extraTemplate">
      <nz-tab *ngFor="let tab of tabs" [nzTitle]="'Tab' + tab ">
        Content of tab {{ tab }}
      </nz-tab>
    </nz-tabset>
    <ng-template #extraTemplate>
      <button nz-button>Extra Action</button>
    </ng-template>
  